Geocoridae

Tang, Jin, Zhang, Gongaote, Guo, Junqi, Luo, Lingxuan, Jiang, Jiamei & Pan, Hongbo, 2023, Big-Eyed Bugs Of The Malagasy Region (Hemiptera: Heteroptera: Lygaeoidea: Geocoridae), Acta Zoologica Academiae Scientiarum Hungaricae 69 (3), pp. 247-264 : 249

Key to genera and species of Geocoridae of the Malagasy region

1 Compound eyes moderately stylate, sometimes projected; ocular sulcus complete, well-defined. Scutellum subequilateral triangular with median trifurcate carina always well-defined. Punctuation of corium arranged in lines along veins ( Figs 16–18 ). Peritreme with dorsal supporting projection, i.e., spout type; evaporatorium covering mesepimeron and metepisternum. 2. (Genus Germalus Stål, 1862 ; 3 spp.)

– Compound eyes slightly stylate, never projected; ocular sulcus at least partly reduced, weakly defined. Scutellum elongate triangular with median trifurcate carina weakly defined or reduced. Punctuation of corium arranged along claval furrow, Cu and an apical triangular spot at apex (e.g., Figs 6 , 12 , 19–20 ). Peritreme vesiculiform auricle; evaporatorium reduced to immediate surroundings of peritreme ( Fig. 7 ) 4

Figures

Figs 15–20. Geocorine true bugs of the Malagasy region (dorsal habitus): 15 = Geocoris pallidipennis mauritii Stål, 1854 (male, MNHN); 16 = Germalus banari Kondorosy et Kóbor, 2016 (paratype, male, MNHN); 17 = Germalus benyovszkyi Kondorosy et Kóbor, 2016 (holotype, male, MNHN); 18 = Germalus kinbergi Stål, 1860 (lectotype, female, NHRS); 19 = Hypogeocoris alluaudi (Montandon, 1908) (male, MNHN); 20 = Hypogeocoris violaceus (Signoret, 1881)

Figs 4–11. Selected morphological characteristics of Geocoris (Piocoris) petofii sp. n.: 4 = furrows of vertex and clypeus (red arrows indicate transversal furrow anteriad to ocelli and median longitudinal furrow); 5 = venter of head [red arrow indicates labial trough (lt)]; 6 = hemelytron [red arrows indicate apex of reduced R-M and venation of membrane (mv)]; 7 = exoskeletal structures of MTSEA [red arrow indicates peritreme (pe)]; 8 = abdominal dorsum (red arrow indicates inclined sutures of tergites IV/V–V/VI); 9 = female ovipositor;

Figs 12–14. Lectotype (present designation) of Geocoris (Piocoris) junodi Montandon, 1907: